| 发明名称 |
TROUBLE SUPERVISORY SYSTEM OF SWITCH MATRIX DEVICE |
| 摘要 |
PURPOSE:To make it possible to discriminate whether a trouble is occurring in a switch driving circuit or a switch matrix circuit by constituting a current detection circuit connected in parallel to the switch matrix circuit. |
| 申请公布号 |
JPS5366108(A) |
申请公布日期 |
1978.06.13 |
| 申请号 |
JP19760141314 |
申请日期 |
1976.11.26 |
| 申请人 |
NIPPON ELECTRIC CO |
发明人 |
TOMITA HIDEO |
| 分类号 |
H04M3/22;H04Q1/24;H04Q3/52;H04Q3/64 |
主分类号 |
H04M3/22 |
| 代理机构 |
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代理人 |
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| 主权项 |
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| 地址 |
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